Interesting, I was always mixing mine simply following color pictures of restored aircraft and never got HU141.Stefano wrote:Official Humbrol formula to make the late 141 is: 9 parts of 27 Matt Sea Grey + 8 parts of 34 White + 6 parts of Matt Brown Yellow.
As for the non-blue hue despite the name of GAC1, a question in the first post, we can say that pale blue or grey-blue undersides were used still before Tavola 10. There are colour photos and documents that prove it. The Tavola 10 GAC1 (FS36307) is identical to a RA interior grey. For some reason, it was at some time officially used also for undersides. Some of the best Italian researchers, like Rick, are working on a complete revision of the matter.
Stefano
I mixed large batch of it, perhaps it is time to repaint models?



